<template>
	<view class="container">
		<!-- 空白页 -->
		<view v-if="cartList.length===0" class="empty">
			<!-- <image src="/static/emptyCart.jpg" mode="aspectFit"></image> -->
			<view v-if="hasLogin" class="empty-tips">
				空空如也
				<navigator class="navigator" v-if="hasLogin" url="../index/index" open-type="switchTab">随便逛逛></navigator>
			</view>
			<view v-else class="empty-tips">
				空空如也
				<view class="navigator" @click="navToLogin">去登陆></view>
			</view>
		</view>
		<view v-else>
			<!-- 列表 -->
			<view class="cart-list">
				<block v-for="(item, index) in cartList" :key="item.id">
					<view class="cart-item" :class="{'b-b': index!==cartList.length-1}">
						<view class="image-wrapper" style="display: block; opacity: 1;">
							<image style="width: 6.5rem;height: 6.5rem;" :src="item.goods.productImage" :class="[item.loaded]" mode="aspectFill"
							 lazy-load @load="onImageLoad('cartList', index)" @error="onImageError('cartList', index)"></image>
							<view class="iconfont iconyouhuiquan-xuanzhong checkbox" :class="{checked: item.checked}" @click="check('item', index)"
							 :style="item.checked?'color: #ff557f;':''"></view>
						</view>
						<view class="item-right">
							<view class=" title">{{item.goods.productTitle}}</view>
							<text class="attr"> <text v-if="','!=item.sku.title">{{item.sku.title}}</text> </text>
							<text class="price">¥{{item.sku.price}}</text>

							<uni-number-box class="step" :min="1" :max="999" :value="item.number" :isMax="item.number>999" :isMin="item.number===1"
							 :index="index" @eventChange="numberChange" :disabled="false"></uni-number-box>
						</view>
						<text class="del-btn iconfont iconicon_delete_fill" style="color: #aaaaff;" @click="deleteCartItem(index)"></text>
					</view>
				</block>
			</view>
			<!-- 底部菜单栏 -->
			<view class="action-section flex c-center m-center">
				<view class="checkbox">
					<image :src="allChecked?'/static/img/cart/selected.png':'/static/img/cart/select.png'" mode="aspectFit" @click="check('all')"></image>
					<view class="clear-btn" :class="{show: allChecked}" @click="clearCart">
						清空
					</view>
				</view>
				<view class="total-box">
					<text class="price">¥{{goodsAmount}}</text>
					<!-- <text class="coupon">
						已优惠
						<text>74.35</text>
						元
					</text> -->
				</view>
				<button type="primary" style="background-color: #ff557f;" class="no-border confirm-btn" @click="createOrder">去结算</button>
			</view>
		</view>
	</view>
</template>

<script>
	import uniNumberBox from '@/components/uni-number-box/uni-number-box.vue'
	export default {
		components: {
			uniNumberBox
		},
		data() {
			return {
				allChecked: false, //全选状态  true|false
				empty: false, //空白页现实  true|false
				cartList: [],
				userInfo: {
					"id": -1
				},
				goodsAmount: 0,
				hasLogin: 1,
			}
		},


		onLoad() {
			//this.loadData();

			this.loadUserInfo();
		},
		onShow() {
			this.getCartList();
			//this.tips1();
		},
		watch: {
			cartList: {
				handler(newValue, oldValue) {
					let empty = this.cartList.length === 0 ? true : false;
					if (this.empty !== empty) {
						this.empty = empty;
					}

					this.count();
				},
				deep: true
			}
		},
		/* computed:{
			...mapState(['hasLogin'])
		}, */
		methods: {
			loadUserInfo() {
				// this.userInfo=this.getUser();
				this.userInfo = this.$dataLocal("user_info")
			},
			getCartList() {
				let o = {};
				o.status = 1;
				o.memberId = this.userInfo.memberId || "-1";
				let _this = this;
				uni.request({
					url: 'http://localhost:8888/codeworld-cart/get-cart-member-id',
					header: {
						'token': this.$dataLocal("token")
					},
					method: 'POST',
					data: JSON.stringify(o),
					success: (response) => {
						if (response.data.code === 20000) {
							var li = response.data.data;
							for (let i in li) {
								let item = li[i];
								item.number = 1;
								item.checked = false;
								var productDetail = {};
								item.sku = JSON.parse(item.productSku);
								// 商品详细信息
								productDetail.productId = item.productId;
								productDetail.productTitle = item.sku.title;
								productDetail.productImage = item.productImage;
								productDetail.productCount = item.productCount;
								productDetail.merchantNumber = item.merchantNumber;
								item.goods = productDetail;
								var sku = item.sku.title;
								item.sku.title = sku.slice(sku.indexOf(' ') + 1)
							}
							_this.cartList = li;
							console.log(this.cartList)
							// _this.count();
						}
					}
				})
				// this.$post("cart/query",o,function(res){
				// 	var li=res.rows;
				//  	for(let i in li){
				// 		let item= li[i];
				// 		item.number=1;
				// 		item.checked=false;
				// 		item.goods=JSON.parse(item.goodsDetail);
				// 		item.sku=JSON.parse(item.skuDetail);
				// 	}
				// 	_this.cartList=li; 
				// 	_this.count();

				// })
			},

			count() {
				var li = this.cartList;
				var sum = 0;
				for (let i in li) {
					var ite = li[i];
					var price = ite.sku.price;
					var sub_sum = parseFloat(price) * parseFloat(ite.number);
					if (ite.checked === true) {
						sum = sum + sub_sum
					}
				}
				console.log(sum);
				this.goodsAmount = this.$round2pos(sum);

			},

			//监听image加载完成
			onImageLoad(key, index) {
				this.$set(this[key][index], 'loaded', 'loaded');
			},
			//监听image加载失败
			onImageError(key, index) {
				this[key][index].image = '/static/errorImage.jpg';
			},
			navToLogin() {

				this.$navigateTo("pages/login/login")
			},
			//选中状态处理
			check(type, index) {
				if (type === 'item') {
					this.cartList[index].checked = !this.cartList[index].checked;
				} else {
					const checked = !this.allChecked
					const list = this.cartList;
					list.forEach(item => {
						item.checked = checked;
					})
					this.allChecked = checked;
				}
				this.count();
			},
			//数量
			numberChange(data) {
				console.log(data);
				this.cartList[data.index].number = data.number;
				this.count();
			},
			//删除
			deleteCartItem(index) {
				let list = this.cartList;
				let row = list[index];
				let id = row.id;
				let o = {};
				o.id = id;
				o.stat = 2;
				this.$post("cart/update", o, function(res) {

				})

				this.cartList.splice(index, 1);
				this.count();
				uni.hideLoading();
			},
			//清空
			clearCart() {
				uni.showModal({
					content: '清空购物车？',
					success: (e) => {
						if (e.confirm) {
							var li = [];
							for (let i in this.cartList) {
								var ite = this.cartList[i];
								li.push(ite.id)
							}
							this.$post("cart/rm_cart_by_cancal", {
								"ids": JSON.stringify(li)
							}, function(res) {

							})
							this.cartList = [];
							this.count();
						}
					}
				})
			},

			//创建订单
			createOrder() {
				let list = this.cartList;
				
				var goods_list = [];
				for (let i in list) {
					var ite = list[i];
					if (ite.checked === true) {
						var param = {};
						param.goods = ite.goods;
						param.sku = ite.sku;
						param.number = ite.number;
						param.cartId = ite.id;
						goods_list.push(param);
					}
				}

				if (goods_list.length === 0) {
					uni.showToast({
						"title": '没有选中商品进行结算'
					})
					return;
				}
				console.log(goods_list)
				this.$dataLocal("buy_list", goods_list);
				this.$dataLocal("buy_type", "cart");
				this.$navigateTo(`/pages/order/create`);
			}
		}
	}
</script>

<style lang='scss'>
	.container {
		padding-bottom: 134upx;

		/* 空白页 */
		.empty {
			position: fixed;
			left: 0;
			top: 0;
			width: 100%;
			height: 100vh;
			padding-bottom: 100upx;
			display: flex;
			justify-content: center;
			flex-direction: column;
			align-items: center;

			image {
				width: 240upx;
				height: 160upx;
				margin-bottom: 30upx;
			}

			.empty-tips {
				display: flex;
				font-size: 0.8rem;
				color: #C0C4CC;

				.navigator {
					color: $uni-color-primary;
					margin-left: 16upx;
				}
			}
		}
	}

	/* 购物车列表项 */
	.cart-item {
		opacity: 1;
		display: flex;
		position: relative;
		padding: 30upx 40upx;

		.image-wrapper {
			opacity: 1;
			width: 230upx;
			height: 230upx;
			flex-shrink: 0;
			position: relative;

			image {
				border-radius: 8upx;

			}
		}

		.checkbox {
			position: absolute;
			left: -16upx;
			top: -16upx;
			z-index: 8;
			font-size: 44upx;
			line-height: 1;
			padding: 4upx;
			color: #C0C4CC;
			background: #fff;
			border-radius: 50px;
		}

		.item-right {
			display: flex;
			flex-direction: column;
			flex: 1;
			overflow: hidden;
			position: relative;
			padding-left: 30upx;

			.title,
			.price {
				font-size: 0.76rem;
				color: #303133;
				height: 80upx;
				line-height: 40upx;
			}

			.attr {
				font-size: 0.72rem;
				color: 909399;
				height: 40upx;
				line-height: 50upx;
			}

			.price {
				height: 50upx;
				line-height: 50upx;
			}
		}

		.del-btn {
			padding: 4upx 10upx;
			font-size: 34upx;
			height: 50upx;
			color: 909399;
		}
	}

	/* 底部栏 */
	.action-section {
		/* #ifdef H5 */
		margin-bottom: 100upx;
		/* #endif */
		position: fixed;
		//left: 30upx;
		bottom: 30upx;
		z-index: 95;
		display: flex;
		align-items: center;
		width: 690upx;
		height: 100upx;
		padding: 0 30upx;
		background: rgba(255, 255, 255, .9);
		box-shadow: 0 0 20upx 0 rgba(0, 0, 0, .5);
		border-radius: 16upx;

		.checkbox {
			height: 52upx;
			position: relative;

			image {
				width: 52upx;
				height: 100%;
				position: relative;
				z-index: 5;
			}
		}

		.clear-btn {
			position: absolute;
			left: 22upx;
			top: 0;
			z-index: 4;
			width: 0;
			height: 52upx;
			line-height: 52upx;
			padding-left: 38upx;
			font-size: 0.8rem;
			color: #fff;
			background: #C0C4CC;
			border-radius: 0 50px 50px 0;
			opacity: 0;
			transition: .2s;

			&.show {
				opacity: 1;
				width: 120upx;
			}
		}

		.total-box {
			flex: 1;
			display: flex;
			flex-direction: column;
			text-align: right;
			padding-right: 40upx;

			.price {
				font-size: 0.86rem;
				color: #303133;
			}

			.coupon {
				font-size: 0.7rem;
				;
				color: 909399;

				text {
					color: #303133;
				}
			}
		}

		.confirm-btn {
			padding: 0 38upx;
			margin: 0;
			border-radius: 100px;
			height: 76upx;
			line-height: 76upx;
			font-size: 0.76rem;
			background: $uni-color-primary;
			box-shadow: 1px 2px 5px rgba(217, 60, 93, 0.72)
		}
	}

	/* 复选框选中状态 */
	.action-section .checkbox.checked,
	.cart-item .checkbox.checked {
		color: $uni-color-primary;
	}

	.image-wrapper uni-image {
		width: 100%;
		height: 100%;
		-webkit-transition: .6s;
		-o-transition: .6s;
		transition: .6s;
		opacity: 1;
	}
</style>
